So far—and keep in mind, we're only 2/3 done with the month—Chicago has had more precipitation this May than in any previous May, with 216 mm total. It's interesting to note that 2019 and 2018 were also the wettest Mays ever, with 210 mm and 208 mm respectively.
In Northwest Michigan, the record rainfall caused a pair of dams to break, flooding the town of Midland under 2.75 m of water.
The Lake Michigan-Huron system continues at record levels for the fifth month in a row, with no sign of receding.
Welcome to the new normal.